1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.wiki.filters;
24  
25  import org.stringtree.factory.AbstractStringFetcher;
26  import org.stringtree.factory.Container;
27  import org.stringtree.factory.Fetcher;
28  import org.stringtree.juicer.Initialisable;
29  import org.stringtree.regex.Matcher;
30  import org.stringtree.regex.Pattern;
31  
32  /**
33   * <a href="MediaWikiLocalLink.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Raymond Augé
36   */
37  public class MediaWikiLocalLink
38      extends AbstractStringFetcher implements Initialisable {
39  
40      public MediaWikiLocalLink() {
41          this(null);
42      }
43  
44      public MediaWikiLocalLink(Container pages) {
45          _pages = pages;
46      }
47  
48      public void init(Fetcher context) {
49          _pages = (Container)context.getObject("wiki.pages");
50      }
51  
52      public Object getObject(String key) {
53          String value = key;
54  
55          Matcher match = _pattern.matcher(key);
56  
57          if (match.find()) {
58              key = encodeKey(match.group(3).trim());
59  
60              String title = match.group(6).trim();
61  
62              if (_pages.contains(key)) {
63                  value = "\nview_mw{" + title + "," + key + "}\n";
64              }
65              else{
66                  value = "\nedit_mw{" + title + "," + key + "}\n";
67              }
68          }
69  
70          return value;
71      }
72  
73      protected String encodeKey(String key) {
74          return key.replaceAll("\\W", "_");
75      }
76  
77      private static Pattern _pattern = Pattern.compile(
78          "(^|\\p{Punct}|\\p{Space})(\\[\\s*(((\\p{Lu}\\p{Ll}+)\\s?)+)\\s*\\|\\s*((([\\p{Alpha}\\p{Digit}]+)\\s?)+)\\s*\\])(\\z|\\n|\\p{Punct}|\\p{Space})");
79  
80      private Container _pages;
81  
82  }